LG 32MN60T as a retro-gaming CRT replacement (using OSSC for upscaling)
The intersection of Cognitive Science, Psychophysics, and technology, broadly construed
2021 model IPS LCD/LED monitor, 1080p at up to 75hz. Actually refreshes at 75hz if that's the signal you give it.
Input lag at screen's top was 2.5ms. Response Time was another 8ms on top of that. The screen has several "modes" including game mode, none of which change anything. It also has a Response Time option, with 3 levels of speed. Increasing the response speed increased the brightness overshot in a black to white transition, but didn't really make the slope of the transition any faster, so the response time stayed about the same: 8ms. Perhaps other transitions fare better, but I can see no reason to use anything other than the normal "response time" setting, as that overshot surely leads to visual artifacts (I didn't test real input to see how much of an effect that was).
VESA mountable, good viewing angles. Enormously too large for 1080p on your desktop. This is meant for more of a living room setting where you are sitting further away (coop gaming?) but why not just use a good TV instead? Perhaps because 2.5ms lag is hard to match without going very high end in the TV space.
I tested a used ViewSonic VA2759, made in 2016. Only seems to support 75hz refresh rates and below (but does scan out at 75hz).
It offers a "game" mode, but this only changes the color profile, all timing is identical across all "modes".
It does offer an option to change response time, from "standard" to "ultrafast". This did change response time, but not input lag.
Input lag in the upper corner is 2.5ms. Response time in standard mode is an additional 10ms. Switching to Ultrafast it drops to 7ms. The luminance curves over time show no ugly artifacts in "ultrafast", at least in the black to white transition.
It accepts interlaced video, which is displayed using BOB deinterlacing.
Colors looked fine, but viewing angles seemed a tad narrow for an IPS.